I have purchased a FN Herstal made in Belgium with a Browning depose patient. One thing different from the rest of the SA 22 that where made by FN for Browning this one is not a takedown it has a solid frame. I have checked with Browning and they have no information on this gun. I have tried to contact FN but can not get a reply. Does anybody know where to find any information about this gun. It has a serial number of F929xx. I think FN made some solid frame guns before they began exporting them to the US. time frame maybe between 1951-1956, any help would be greatly appreciated..